2026 ICD-10-CM Diagnosis Code Z33.3Pregnant state, gestational carrier

ICD-10-CM Codes›Z00–Z99›Z30-Z39›Z33

ICD-10-CM Z33.3
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z33.3 is a billable ICD-10-CM diagnosis code for pregnant state, gestational carrier. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64), not accepted as a principal diagnosis, and exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Uncomplicated pregnancy, delivery or puerperium.

Code Identity

ICD-10-CM Code
Z33.3
Billable Status
Yes — Valid for Submission
Code Describes
Pregnant state, gestational carrier
Short Description
Pregnant state, gestational carrier
Same as the full description in the CMS dataset.
Parent Code
Z33
Pregnant state

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ30-Z39Persons encountering health services in circumstances related to reproduction
CategoryZ33Pregnant state
This CodeZ33.3Pregnant state, gestational carrier

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z33.3.

Maternity diagnoses
The Medicare Code Editor detects inconsistencies in maternity cases by checking a patient's age and any diagnosis on the patient's record. The maternity code edits apply to patients age ange is 9–64 years inclusive (e.g., diabetes in pregnancy, antepartum pulmonary complication).
Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Present on Admission (POA)Billing

Z33.3 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

  • encounter for procreative management and counseling for gestational carrier Z31.7

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Pregnancy(single) (uterine)
      • gestational carrier
    • State(of)
      • pregnant
        • gestational carrier

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR PRG029
Uncomplicated pregnancy, delivery or puerperium
Default principal diagnosis: inpatient No · outpatient Yes

Patient EducationClinical

Pregnancy

You're going to have a baby! It's an exciting time, but it can also feel a bit overwhelming. You may have a lot of questions, including what you can do to give your baby a healthy start. Taking care of your health while you're pregnant will help your fetus develop into a healthy baby. To do that, it's important to:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert Z33.3 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V22.2 Preg state, incidental
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replacement Z33.3 replaces the following previously assigned code(s):

  • Z33.1 - Pregnant state, incidental
FY 2018AddedAdded to the ICD-10-CM code setEffective October 1, 2017.
FY 2019–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z33.3Overview

Is Z33.3 (Pregnant state) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report pregnant state, gestational carrier on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can Z33.3 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because pregnant state, gestational carrier describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Who can Z33.3 be reported for?

The Medicare Code Editor checks pregnant state, gestational carrier against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.

Is Z33.3 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for pregnant state, gestational carrier on inpatient claims.

What is the ICD-9 equivalent of Z33.3?

Under the General Equivalence Mappings, pregnant state, gestational carrier converts to ICD-9-CM V22.2 (preg state, incidental). The mapping is approximate, so confirm the match fits the documentation.